21214864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120539}}^1$

素因数の和:120558

約数の個数: 20

約数和(自身を含む): 44840880

約数和(自身を除く): 23626016

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120539, 241078, 482156, 964312, 1325929, 1928624, 2651858, 5303716, 10607432, 21214864]

約数ペア:

[(1, 21214864), (2, 10607432), (4, 5303716), (8, 2651858), (11, 1928624), (16, 1325929), (22, 964312), (44, 482156), (88, 241078), (176, 120539)]